A new approach is required for the definition of counter surfaces to ensure effective sealing in dynamic applications, including applications in which chrome plating is replaced by alternative coatings.
Traditionally piston rods in hydraulic systems were chrome plated to provide friction and surface finish characteristics. Under the REACH directive, Hexavalent Chromium (CR6) is a substance of high concern and must now be omitted from any hydraulic application, leading to the adoption of alternative coatings for the hydraulic system’s piston rods.
To maximize the performance and system life in hydraulic systems, these should be designed to optimize a system’s tribology, which is dependent on the interaction of a system’s seals, hydraulic fluid and the finish of the mating surfaces.
The lubrication within the hydraulic system is fundamentally affected by the surface finish of the mating surfaces. Their characteristics will determine the lubrication within the system and therefore the tribological environment.
Take a look at these tools and resources for a closer look at the topic of counter surfaces:
Webinar: Counter Surfaces
Join Dr. Mandy Wilke for an introduction to Counter Surfaces and how to maximize the performance and system life in your hydraulic component.
Watch the video recording!
Discover how to achieve more robustness for hydraulic systems with the right specification of counter surfaces, reduce wear, down time & maintenance costs!
An Introduction to Counter Surfaces
This whitepaper explores coatings to replace Hexavelent Chromium for counter surfaces in hydraulic applications. Counter surfaces in hydraulic systems place a vital role in ensuring the efficiency and service life of hydraulic systems.
Download this whitepaper to learn more